/*
 * Copyright 2019-present HiveMQ GmbH
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.hivemq.throttling;

import com.hivemq.extension.sdk.api.annotations.NotNull;
import com.hivemq.common.shutdown.HiveMQShutdownHook;

import java.util.concurrent.ScheduledExecutorService;

/**
 * This Shutdown Hook is responsible for shutting down the backing executor
 * for the Global Traffic Shaper.
 *
 * @author Florian Limpoeck
 */
public class GlobalTrafficShaperExecutorShutdownHook extends HiveMQShutdownHook {


    private final ScheduledExecutorService executor;

    public GlobalTrafficShaperExecutorShutdownHook(final ScheduledExecutorService executor) {

        this.executor = executor;
    }

    @NotNull
    @Override
    public String name() {
        return "Global Traffic Shaper Executor Shutdown Hook";
    }

    @NotNull
    @Override
    public Priority priority() {
        return Priority.HIGH;
    }

    @Override
    public boolean isAsynchronous() {
        return false;
    }

    @Override
    public void run() {
        executor.shutdownNow();
    }
}
